Z10 flip case draining battery...while off?
My Z10, which has been behaving well for the most part, seems to lose about 20% of it's battery charge after I've shut it down and left it closed in the flip (should call it "flap") case for the night. By "shut down", I mean the 3-2-1, really 'off', shut-down. Which is weird, because this morning, when I opened the flap to start, the screen was subtly backlight - as though it was in stand by, and not actually off (the phone lay, screen side down, on a table, unmoved for the night). As well, it needs the-hold-the-power-button for 10 seconds in order to start properly. I haven't any issues with charging, and my battery life is pretty good, compared to some user's experience.
None of this was happening before I used the flip/flap case. Was wondering if the magnet was confusing the phone, and turning it "half-on" during the night, causing battery drain.....anyone else experience this?